SSH port knocking script

I wrote knockknock because I couldn't find a non-insane port knocker that employed the use of cryptography over a simple knock sequence: <a href="http://www.thoughtcrime.org/software/knockknock/" rel="nofollow">http://www.thoughtcrime.org/software/knockknock/</a>

now we need a client bash script generator to ease the pain of connecting to the remote server. Does this mean i would have to ssh N times before i could use scp to download some files? probably not a good example...